Algae is not an abiotic factor.
Answer:
Boiling water is an example of a physical change and not a chemical change because the water vapor still has the same molecular structure as liquid water (H2O).
Explanation:
I would say that the first answer choice makes sense since the charge of Oxygen is +2. But I may be wrong, try it out!
Answer:
AB + CD ----> AC + BD
Explanation:
If you think this reaction:
AB + CD ----> AC + BD
(Reactants) (Products)
All the statements are true.